The junction between the left atrium and the pulmonary veins. An anatomic study of human hearts

Some anatomic features of the posterior wall of the left atrium, the atrial-pulmonary venous junctions, and the myocardial sleeves extending over the pulmonary veins, as observed in 16 human hearts, are described. Different patterns of direction of the myocardial fibers of the atrial wall were found...

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Published inCirculation (New York, N.Y.) Vol. 34; no. 3; pp. 412 - 422
Main Authors Nathan, H, Eliakim, M
Format Journal Article
LanguageEnglish
Published United States 01.09.1966
Subjects
Adolescent
Adult
Female
Heart - anatomy & histology
Heart Atria - anatomy & histology
Humans
Male
Middle Aged
Pulmonary Veins - anatomy & histology
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Summary:Some anatomic features of the posterior wall of the left atrium, the atrial-pulmonary venous junctions, and the myocardial sleeves extending over the pulmonary veins, as observed in 16 human hearts, are described. Different patterns of direction of the myocardial fibers of the atrial wall were found in the different specimens. The atrial wall between the upper pulmonary veins was consistently thicker than that between the lower ones. Similarly, the sphincter-like structures of the atrial-pulmonary venous junctions were generally more conspicuous, and the myocardial venous sleeves better developed in the superior than in the inferior pulmonary veins. The physiological and pathological implications of these findings are discussed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0009-7322
1524-4539
DOI:10.1161/01.CIR.34.3.412